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CHINA 'ISLAND.' Mischief Reef is the site of one of China's artificial islands in the West Philippine Sea (South China Sea). Construction of hangars at Mischief Reef is at an earlier stage, the Asia Maritime Transparency Initiative says of this satellite image dated July 22, 2016. Photo courtesy of CSIS/AMTI and DigitalGlobe

MANILA, Philippines – Philippine Foreign Secretary Perfecto Yasay Jr on Wednesday, August 24, said China is possibly using "black sand" from the Philippines to build its artificial islands in the West Philippine Sea (South China Sea).

"There is evidence showing that indeed, black sand had been utilized from our territories, mined from there, and then used to undertake these reclamation activities, particularly in the Spratly Islands, where these reclamation activities have almost been completed," Yasay said in a Senate briefing on Wednesday.

Yasay said this information is based on findings of the intelligence community, the government's security cluster, and the West Philippine Sea Task Force.

The island-building activities began before Manila won a historic case against China over the West Philippine Sea.

Yasay, however, said that "there is no definitive investigation or finding about whether or not black sand" was used to build China's artificial islands.

"We'll be happy to see through the results of the Senate investigation on this particular matter," Yasay said.

Yasay: 'They cannot just do that'

In Wednesday's Senate briefing, Yasay added there had been attempts to use Philippine black sand for reclamation activities in the contested Panatag Shoal (Scarborough Shoal).

Yasay said: "The actual reclamation in Scarborough never took place. There were attempts to send vessels with black sand, with all the equipment, to start reclaiming Scarborough Shoal, but this was stopped by the Americans."

Senator Richard Gordon then asked Yasay about "the attitude" of the Philippines when the Chinese "take away our land, literally, not only our claims."

Yasay told Gordon: "In that particular instance, Mr Chairman, your honor, it is my position, it's the position of the Department of Foreign Affairs, that that particular activity is in violation of our territorial integrity or sovereignty rights."

"They cannot just do that. And if they will do that, it is our right to defend our territory against this encroachment," the Philippines' top diplomat said.

On China's reclamation activities in general, Yasay said on Wednesday: "For the international community, the red line is that this should be stopped. Right now, there should be no further reclamation activities." – Rappler.com

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Welcome to Rappler, a social news network where stories inspire community engagement and digitally fuelled actions for social change. Rappler comes from the root words "rap" (to discuss) + "ripple" (to make waves).